Spring MVC文件上传！！！

注意：我使用的是tomcat插件，不需要配置tomcat了

添加依赖：

 war

    
        
            org.springframework
            spring-context
            5.1.8.RELEASE
        
        
            org.springframework
            spring-web
            5.1.8.RELEASE
        
        
            org.springframework
            spring-webmvc
            5.1.8.RELEASE
        
        
        
            com.fasterxml.jackson.core
            jackson-databind
            2.9.0
        
        
            javax.servlet
            servlet-api
            2.5
            provided
        

        
            javax.servlet.jsp
            jsp-api
            2.0
            provided
        
        
        
            commons-fileupload
            commons-fileupload
            1.3.1
        
    
    
        
            
            
                org.apache.tomcat.maven
                tomcat7-maven-plugin
                2.2
                
                    
                    8080
                    
                    /
                
            
        
    

配置文件上传解析器：springmvc.xml

 配置web.xml:

    
    
    
        springmvc
        org.springframework.web.servlet.DispatcherServlet
        
            contextConfigLocation
            classpath:springmvc.xml
        
        1
    
    
        springmvc
        /
    

 编写controller：

/*
 * Copyright (c) 2020, 2024,  All rights reserved.
 *
 */
package com.by.controller;

import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.multipart.MultipartFile;

import javax.servlet.http.HttpServletRequest;
import java.io.File;
import java.io.IOException;

/**
 * 
Project: SpringMVC - uploadController
 * 
Powered by scl On 2024-01-10 11:02:34
 * 
描述：

 *
 * @author 孙臣龙 [[email protected]]
 * @version 1.0
 * @since 17
 */
@Controller
@RequestMapping("/account")
public class uploadController {

    @PostMapping("/upload")
    public String upload(MultipartFile img, HttpServletRequest request, Model model) throws IOException {
        //获取上传目录
        String realPath = request.getSession().getServletContext().getRealPath("uploads");
        //判断目录是否存在
        File file = new File(realPath);
        if (!file.exists()){
            file.mkdirs();
        }
        //上传
        String filename = img.getOriginalFilename();
        img.transferTo(new File(realPath,filename));

        model.addAttribute("msg",filename);
        return "success";
    }
}

在index.jsp里面定义超链接 ：

    文件：

    
  

 上传成功跳转页面：success.jsp

结果展示：